Base 12 Repunits
Table
Format: small prime × proven prime<size> × (probable prime)<size> × [composite]<size> × {unknown}<size>
| 256: | \[{12^{256}-1\over11}\] | 5 × 13 × 17 × 29 × 89 × 97 × 233 × 257 × 769 × 36097 × 81281 × 153953 × 260753 × 69619841 × 1200913648289<13> × 73389730593973249<17> × 44450180997616192602560262634753<32> × 77941952137713139794518937770197249<35> × 5312101574902471551211009858792613701359967851693176348913224262954673066874179441584772343144224572301982521857107589870210046272536321<136> |